
MilliVoltmeterDIY LEAP#327
STDMilliVoltmeterDIY LEAP#327
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Mode:Full
License
:MIT
Creation time:2018-01-17 11:19:01Update time:2021-04-08 04:22:23
Description
An ATmega328-based millivolt meter based on a design by Scullcom Hobby Electronics. Uses an LTC2400 ADC and LT1019 voltage reference.
I have fabricated the board at OSHPark, built and tested it - all OK! There are a few changes I'd make to the PCB if I did this again - mainly concerning more conventient connector placement.
All the design notes (including code) are available at https://github.com/tardate/LittleArduinoProjects/tree/master/Equipment/MilliVoltmeterDIY/CustomBoardAndEnclosure
Design Drawing
schematic diagram
PCB
BOM
ID | Name | Designator | Footprint | Quantity |
---|---|---|---|---|
1 | ATMEGA328P-AU | U1 | TQFP-32_7X7X08P | 1 |
2 | LT1019CS8-2.5PBF | U2 | SOIC-8 | 1 |
3 | LTC2400CS8PBF | U3 | SOIC-8 | 1 |
4 | 100K | R1,R3 | R0805 | 2 |
5 | 1M | R2 | R0805 | 1 |

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